Compose and compile your Processing & p5.js projects right on your phone or iPad, wherever your are!

Export your Processing projects as App on your home screen:
1. Select an App icon for your Processing project.
2. Add it to your home screen.
You can now use the app offline, just like any other app!

This app is already being used in high schools and universities to teach and learn Processing & p5.js.

Your code is highlighted and formatted for excellent reading-comfort.
Processing Pro allows you to see which parts of your code are causing problems.

3D sketches and games are supported.

This is not an official app by or p5.js

Available subscription: Processing Pro, offers additional functionalities, such as exporting your sketches as apps.

Trailer Music: Circle of Alchemists

Privacy and Terms:

What’s New

Version 2.6.3

Fixed an issue where importing PDE files was not possible.

Ratings and Reviews

4.2 out of 5
46 Ratings

46 Ratings

cvonnagy ,

Nice implementation of Processing

Frogg GmbH´s implementation of a Processing IDE for iOS is straightforward and easy to use both for the beginner and for the experienced Processing developer. It s nice to be able to test out simple to moderately complex sketches on the go. I do have a few suggestions: 1) a simple help system for beginners focusing on iOS-specific interactions with the hardware would be nice (camera, accelerometer, gyroscope, GPS? but, perhaps, some of these have not been or will not be implemented), 2) integration with other software tools (for instance, GitHub clients such as Working Copy), 3) a means to create and interact with a “data” directory and to import and export resources, and 4) a means to interact over Serial with external devices (ultimately, Arduinos, etc) would be nice. Thanks for taking the time to create a fine app. ,

Well implemented processing IDE, fluid coding experience, could use debugging output

Processing IDE is very well implemented. Development is surprisingly fluid and quick for mobile. My one issue is with debugging. It’s hard to trace the source of coding errors, as you’re left with a black output screen and nothing else.

Easy fix would be to display the error output from the processing interpreter/compiler.

Digital Down ,


I downloaded this app a week ago for processing and today I had the thought, “I wonder if there’s an app for p5js”... and it turns out that feature was literally integrated two days ago. Amazing app, I’ve been using it extensively, going back and forth between the github app, copying some processing sketches to get ideas for my own creative projects. Amazing app!!!


Frogg GmbH
23.8 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
In-App Purchases
  1. Processing Pro $5.49
  2. Processing for iOS Tip $4.99
  3. Processing for iOS Tip $99.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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